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Defined Benefit Obligation and Other Long-Term Liabilities (Details) - CAD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Subclassifications of assets, liabilities and equities [abstract] |  |
Defined benefit obligation (Note 28) | $ 282 | $ 268
Long-term incentive accruals (Note 27) | 4 | 4
Other | 12 | 29
Total | $ 298 | $ 301

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- Definition The amount of accruals classified as non-current. [Refer: Accruals] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of non-current net defined benefit liability. [Refer: Net defined benefit liability] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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- References No definition available. + Details
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- Definition Non-current Defined Benefit Obligation And Other Long-term Liabilities + References No definition available. + Details
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